NTP - ACL
NTP - Network Time Protocol Packet types: - Control messages : don't bother with this. - NTP request/update messages: used for time sy...
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Create a loopback Interface on MacOS X: ifconfig lo0 alias 172.16.123.1 will add an alias IP 172.16.123.1 to the loopback adapter ifconf...
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Three authentication modes: 0 - null, no authentication 1 - clear-text 2 - md5 Per interface authentication r1(config)# interface s1/...
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NTP - Network Time Protocol Packet types: - Control messages : don't bother with this. - NTP request/update messages: used for time sy...